The book is simply a great one!
What I can tell is that I used to hate database stuff and regarded them as the most boring thing ever. But my view changed after reading MySQL and mSQL.

The book provides you a very clear concept of what databases are and how they work, it also comes with a number of clear examples. However, in fact, I personally would prefer heavier contents on the programming part.

About the programming part, some codes don't work, due to some typo. But it shouldn't a big due, if you are not a newbie in programming, you should be able to correct them (just run your perl interpreter and check the error message otherwise).

Oh yea, I wonder if I could get the source codes listed in the book in O'reilly's homepage or from a companion CD-ROM, that would be nice for lazy people like me. ^-~